1: Prepare the chicken by cooking it until fully done.
2: Chop the cilantro, avocado, tomato, red pepper, jalapeno, purple/red bell pepper, garlic, shallot, and onion.
3: In a bowl, mix the chopped ingredients and season with salt and pepper.
4: Squeeze lemon juice over the mixture.
5: Warm the corn tortillas and then fill them with the chicken and vegetable mixture.
6: Top with cheddar cheese before serving.